EP1461655A2 - Dispositif optique - Google Patents

Dispositif optique

Info

Publication number
EP1461655A2
EP1461655A2 EP02777754A EP02777754A EP1461655A2 EP 1461655 A2 EP1461655 A2 EP 1461655A2 EP 02777754 A EP02777754 A EP 02777754A EP 02777754 A EP02777754 A EP 02777754A EP 1461655 A2 EP1461655 A2 EP 1461655A2
Authority
EP
European Patent Office
Prior art keywords
optical
light
expander
optical device
diffraction gratings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02777754A
Other languages
German (de)
English (en)
Other versions
EP1461655A4 (fr
Inventor
Yehuda Niv
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mirage Innovations Ltd
Original Assignee
Planop Planar Optics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Planop Planar Optics Ltd filed Critical Planop Planar Optics Ltd
Publication of EP1461655A2 publication Critical patent/EP1461655A2/fr
Publication of EP1461655A4 publication Critical patent/EP1461655A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide

Definitions

  • the present invention relates to a compact optical device and, more particularly, to a compact optical device which can be used in personal handheld devices, such as personal digital assistant (PDA), portable telephones and the like.
  • PDA personal digital assistant
  • An electronic display may provide a real image, the s ize o f which i s determined by the physical size of the display device, or a virtual image, the size of which may extend the dimensions of the display device.
  • a real image is defined as an image, projected on a viewing s rface positioned at t he 1 ocation o f t he i mage, a nd o bserved b y a n u naided h uman eye.
  • Examples of real image displays include a cathode ray tube (CRT) or a liquid crystal display (LCD).
  • CRT cathode ray tube
  • LCD liquid crystal display
  • desktop computer systems and workplace computing equipment utilize CRT display screens to display images for a user.
  • the CRT displays are heavy, bulky, and not easily miniaturized.
  • flat-panel display is typically used.
  • the flat-panel display may use LCD technology implemented as passive matrix or active matrix panel.
  • the passive matrix LCD panel consists of a grid of horizontal and vertical wires. Each intersection of the grid constitutes a single pixel, and i s c ontrolled by a LCD element.
  • the LCD element either allows light through or blocks the light.
  • the active matrix panel uses a transistor to control each pixel, and is more expensive.
  • the flat-panels are also used for miniature image display systems because of their compactness and energy efficiency compared to the CRT displays.
  • Various configurations of miniature display systems using flat-panel display and reflective lighting technique can be found in U.S. Patent
  • Small size real image displays have a relatively small surface area on which to present a real image, thus have limited capability for providing sufficient information to the user. In other words, because of the limited resolution of the human eye, the amount of details resolved from a small size real image may be insufficient.
  • a virtual image is defined as an image, which cannot be projected onto a viewing surface, since no light ray connects the image and an observer.
  • a virtual image can only be seen through an optic element, for example a typical virtual image can be obtained from an object placed in front of a converging lens, between the lens and its focal point.
  • holographic optical elements have been used in portable virtual image displays.
  • Holographic optical elements serve as an imaging lens and a combiner where a two-dimensional, quasi-monochromatic display is imaged to infinity and reflected into the eye of an observer.
  • a common problem to all types of holographic optical elements is their relatively high chromatic dispersion. This is a major drawback in applications where the light source is not purely monochromatic.
  • Another drawback of some of these displays is the lack of coherence between the geometry of the image and the geometry of the holographic optical element, which causes aberrations in the image array that decrease the image quality.
  • New designs which typically deal with a single holographic optical element, compensate for the geometric and chromatic aberrations by using non-spherical waves rather than simple spherical waves for recording; however, they do not overcome the chromatic dispersion problem.
  • the overall optical systems are usually very complicated and difficult to manufacture.
  • the eye-motion-box of the optical viewing angles resulting from these designs is usually very small, typically less than 10 mm.
  • the performance of the optical system is very sensitive, even to small movements of the visor relative to the eye of the viewer.
  • a readout light source must be located at some distance from the hologram, in order to illuminate its entire surface.
  • an optical device for enlarging an eye box, the optical device comprising: (a) a first optical expander being carried by, or formed in, a first light-transmissive substrate engaging a first plane; and (b) a second optical expander being carried by, or formed in, a second light-transmissive substrate engaging a second plane being spaced apart from the first plane; the first and the second optical expanders being designed and configured such that light passing through the first optical expander is expanded in a first dimension, enters the second light-transmissive substrate, through the second optical expander and exits from the second light-transmissive substrate expanded in a second dimension, hence enlarging an eye box of the optical device in both the first and the second dimensions.
  • a method of enlarging an eye box comprising: (a) expanding inputted light rays in a first dimension by passing the light rays through a first optical expander engaging a first plane; and (b) expanding the inputted light rays in a second dimension by passing the light rays through a second optical expander engaging a second plane being spaced apart from the first plane; hence enlarging the eye box in both the first and the second dimensions.
  • the method further comprising prior to step (b): passing the light rays through an optical trapping element engaging the second plane and being laterally displaced from the second optical expander thereby propagating the light rays through a light guide in a direction of the second optical expander.
  • the method further comprising collimating the inputted light.
  • the collimating is done by a converging lens.
  • the collimating is done by a diffractive optical element.
  • the method further comprising redirecting the inputted light, so as to reduce a distance between the first plane and an input light source producing the inputted light.
  • the redirecting is done by a 45 degrees mirror.
  • a method of manufacturing an optical device for enlarging an eye box comprising: (a) positioning a first light-transmissive substrate having a first optical expander carried thereby, or formed therein in a first plane; and (b) positioning a second light-transmissive substrate having a second o ptical e xpander carried thereby, or formed therein, the first and the second optical expanders designed and configured such that light passing through the first optical expander is expanded in a first dimension, enters the second light-transmissive substrate, through the second optical expander and exits from the second light-transmissive substrate expanded in a second dimension.
  • an optical device for enlarging an eye box, the optical device comprising: a first light-transmissive substrate engaging a first plane; and a second light-transmissive substrate engaging a second plane being spaced apart from the first plane; the first and second light-transmissive substrates designed and configured such that light passing through the device is first expanded in a first dimension within the first light-transmissive substrate, and then expanded in a second dimension within the second light-transmissive substrate, hence enlarging an eye box of the optical device in both the first and the second dimensions.
  • the optical device further comprising an input light source for producing the light.
  • the optical device further comprising: (c) an optical trapping element being carried by, or formed in, the second light-transmissive substrate and being laterally displaced from the second optical expander;
  • the optical device further comprising a collimator for collimating the light produced by the input light source.
  • the optical device further comprising at least one optical element for redirecting light rays, positioned so as to reduce an overall size of the optical device.
  • the first and second planes are substantially parallel.
  • first and second dimensions are substantially orthogonal.
  • the input light source comprises an input display source, hence the light constitutes an image.
  • the first and second optical expanders substantially parallel one another and at least partially overlap in a direction substantially perpendicular both thereto.
  • the first optical expander is configured and designed so as to transform spherical waves emanating from the input display source into plane waves, to at least partially diffract the plane waves, and to reflect the plane waves within the first light-transmissive substrate, hence to expand the image in the first dimension.
  • the second optical expander is configured and designed so as to at least partially diffract at least a portion of light rays exiting the first light- transmissive substrate, hence to expand the image in the second dimension, and to couple the light rays out of the second light-transmissive substrate in a direction of an eye of a user.
  • the optical trapping element is configured and designed so as to trap at least a portion of light rays exiting the first light-transmissive substrate, inside the second light-transmissive substrate by substantially total internal reflection, hence to propagate the plurality of light rays in a direction of the second optical expander.
  • the second optical expander is configured and designed so as to at least partially diffract the plurality of light rays, propagated through the second light-transmissive substrate, hence to expand the image in the second dimension, and to couple the plurality of light rays out of the s econd light- transmissive substrate in a direction of an eye of a user.
  • each of the first and the second optical expanders is embodied in the light-transmissive substrates by recording an interference pattern of two mutually coherent optical waves.
  • the interference pattern comprise linear diffraction gratings.
  • the linear diffraction gratings of the second optical expander is substantially orthogonal to the linear diffraction gratings of the first optical expander.
  • the linear diffraction gratings of the first and second optical expanders are each independently selected from the group consisting of reflection linear diffraction gratings and transmission linear diffraction gratings.
  • the recording is effected by a procedure selected from a group consisting of computer-generated masks, lithography, embossing, etching and direct writing.
  • the optical trapping element is embodied in the light- transmissive substrates by recording an interference p attern o f two mutually coherent optical waves.
  • the linear diffraction gratings of the optical trapping element is substantially orthogonal to the linear diffraction gratings of the first optical expander.
  • the linear diffraction gratings of the optical trapping element is substantially parallel to the linear diffraction gratings of the second optical expander.
  • each of the first and second light-transmissive substrates comprises a first surface and a second surface.
  • the first optical expander is embodied in the first surface of the first light-transmissive substrate.
  • the first optical expander is embodied in the second surface of the first light-transmissive substrate.
  • the collimator comprises a converging lens.
  • the collimator comprises a diffractive optical element carried by, or formed in, the first light-transmissive substrate.
  • the at least one optical element is a 45 degrees mirror.
  • each of the first optical expander and the second optical expander has a predetermined diffraction efficiency.
  • the optical trapping element has a predetermined diffraction efficiency.
  • the predetermined diffraction efficiency varies locally for achieving an output having substantially uniform light intensities.
  • the predetermined diffraction efficiency varies locally for achieving an output having predefined intensities.
  • first and the second optical expanders are each independently a plurality of linearly stretched mini-prisms, carried by a variable light transmissive surface.
  • the optical trapping element i s a lurality o f linearly stretched mini-prisms.
  • the first light-transmissive substrate and the second light- transmissive substrate are of thickness ranging between about 0.5 mm and about 5 mm. According to still further features in the described preferred embodiments the first light-transmissive substrate and the second light- transmissive substrate are each independently selected from the group consisting of glass and transparent plastic.
  • the present invention successfully addresses the shortcomings of the presently known configurations by providing an optical device for enlarging an eye box.
  • Implementation of the method and device of the present invention involves performing or completing selected tasks or steps manually, automatically, or a combination thereof.
  • several selected steps could be implemented by hardware or by software on any operating device of any firmware or a combination thereof.
  • selected steps ofthe invention could be implemented as a chip or a circuit.
  • selected steps of the invention could be implemented as a plurality of software instructions being executed by a computer using any suitable operating device.
  • selected steps of the method and device of the invention could be described as being performed by a data processor, such as a computing platform for executing a plurality of instructions.
  • FIG. 1 is a three-dimensional view of a prior art planar optical configuration
  • FIG. 2a is a short side view of a device for enlarging an eye-box according to the teachings ofthe present invention
  • FIG. 2b is a long side view of a device for enlarging an eye-box according to the teachings ofthe present invention
  • FIG. 3 is a long side view of a device for enlarging an eye-box further including an optical trapping element according to the teachings of the present invention
  • FIG. 4 is a long side view of a device for enlarging an eye-box further including a collimator, at least one optical element for redirecting light rays and an input light source, according to the teachings ofthe present invention
  • FIG. 5 is a short side schematic illustration of the operation of a first optical expander carried by a first light-transmissive substrate, according to the teachings of the present invention.
  • FIG. 6 is an isometric view of a device for enlarging an eye-box, according to the teachings ofthe present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the present invention is of an optical device which can be used to enlarge an eye-box.
  • the present invention can be used to enlarge an eye- box of a display embodied in e.g., cellular telephones.
  • Figures 2-6 of the drawings reference is first made to the construction and operation of a prior art display as illustrated in Figure 1.
  • Figure 1 illustrates a three-dimensional view of a planar optical configuration disclosed in International Patent Application No. WO 95/11473, which is referred to herein as device 10.
  • Device 10 includes a first holographic optical element 12, a second holographic optical element 14 and a third holographic optical element 16, formed in a light-transmissive substrate 18.
  • Second holographic optical element 14 is laterally displaced from first holographic optical element 12.
  • the displacement direction of second holographic optical element 14 from first holographic optical element 12 is referred to herein as direction ⁇ , and the orthogonal direction to ⁇ is referred to herein as direction ⁇ .
  • transverse dimensions i.e., the dimensions along ⁇ axis, of both second holographic optical element 14 and first holographic optical element 12 are substantially equal, whereas the longitudinal dimension (along ⁇ axis), of second holographic optical element 14 is larger than the longitudinal dimension of first holographic optical element 12.
  • Third holographic optical element 16 is further laterally displaced from second holographic optical element 14 in ⁇ direction. Both transverse and longitudinal dimensions of third holographic optical element 16 are substantially equal to the longitudinal dimension of second holographic optical element 14.
  • First holographic optical element 12 is illuminated by light, which may be generated by a light source located behind first holographic optical element 12.
  • the illuminating light is diffracted by first holographic optical element 12 in a manner such that the light is trapped inside light-transmissive substrate 18 and propagates in ⁇ direction therethrough by substantially total internal reflection, as disclosed in International Patent Application No. WO 95/11473.
  • the physical phenomenon of total internal reflection is herein described. Considering a ray of light moving within a light-transmissive substrate and striking one of its internal surfaces at an angle ⁇ as measured from a normal to the surface.
  • ni sin ⁇ 1 n 2 sin ⁇ 2 , (Eq. 1) where ni is the index of refraction of the light-transmissive substrate, n 2 is the index of refraction of the air ( i > n 2 ), and ⁇ 2 is the angle in which the ray is refracted out, in case of refraction. Similarly to ⁇ l5 ⁇ 2 is measured from a normal to the surface.
  • Equation 1 Given the impact angle, ⁇ i, and the refraction indices, ni and n 2 , Equation 1 has a solution for ⁇ 2 only for ⁇ i which is smaller than arcsine of n 2 /ni often called the critical angle. Hence, for sufficiently large ⁇ i (above the critical angle), no refraction angle ⁇ 2 satisfies Equation 1 and light energy is trapped within light-transmissive substrate. In other words, the light is reflected from the internal surface as if it had stroked a mirror. Under these conditions, total internal reflection is said to take place.
  • the p ropagated light after a few reflections within light-transmissive substrate 18, reaches second holographic optical element 14, which diffracts the light so that the light propagates, still within light-transmissive substrate 18, however in ⁇ direction.
  • Third holographic optical element 16 couples the trapped light outward from light-transmissive substrate 18, in a direction calculated to reach an eye of a user.
  • first, second and third holographic optical elements expand an image constituted by the input light in two dimensions, thereby enlarging the eye-box ofthe display.
  • the factor of eye-box enlargement depends on the ratios between the physical dimensions of the optical elements embodied in device 10.
  • first 12, second 14 and third 16 holographic optical elements are configured in a planar geometry, namely engaging a single plane. The minimal area of the plane is larger than the sum of areas of the three holographic optical elements. ⁇
  • device 20 an optical device for enlarging an eye box
  • the principles and operation of an optical device for enlarging an eye box according to the present invention may be better understood with reference to the drawings and accompanying descriptions.
  • Figures 2a and 2b illustrate, respectively, a first (short) and a second (long) side view of device 20 of the present invention.
  • Device 20 includes a first optical expander 22 which is carried by, or formed in, a first light-transmissive substrate 24.
  • First optical expander 22 and first light-transmissive substrate 24 serve for expanding input light passing therethrough in a first dimension, as further detailed hereinunder. As seen, first light-transmissive substrate 24 engages a first plane.
  • Device 20 further includes a second optical expander 26 which is carried by, or formed in a second light-transmissive substrate 28.
  • Second optical expander 26 and second light-transmissive substrate 28 serve for expanding the light passing therethrough, in a second dimension, as further detailed hereinunder.
  • second light-transmissive substrate 28 is engaging a second plane, which second plane is spaced apart, preferably about 0.5 mm - 2 mm, from the first plane.
  • the first plane and the second plane are substantially parallel.
  • the planes may have any other, i.e., non-parallel, mutual position in space.
  • device 20 ensures that each light- transmissive substrate expands the light in one dimension, whereas the output of first light-transmissive substrate 24 becomes the input of second light- transmissive substrate 28.
  • device 20 enlarges an eye box in two dimensions.
  • Figure 3 depicts a second (long) side view of device 20, demonstrating another preferred embodiment of the invention.
  • device 20 may further include an optical trapping element
  • Optical trapping element 30 which is carried by, or formed in, second light-transmissive substrate 28, and is laterally displaced from second optical expander 26.
  • Optical trapping element 30 serves for re-directing the light expanded by first optical expander
  • optical element 30 is a diffractive optical element.
  • the process of using a diffractive optical element to enable light propagation within a light-transmissive substrate, is known in the art and is described in, for example, U.S. Patent No. 4,711,512, the contents of which are hereby incorporated by reference.
  • device 20 may further include a collimator 34, at least one optical element 42 for redirecting light rays and/or an input light source 52.
  • Collimator 34 is positioned behind first light-transmissive substrate 24.
  • Collimator 34 serves for collimating the input light, if it is not already collimated, prior to impinging on first light-transmissive substrate 24.
  • Any collimating element known in the art may be used as collimator 34, for example a converging lens or a diffractive optical element. The purpose ofthe collimating procedure is for improving the imaging ability.
  • Other collimating means e.g., a diffractive optical element may also provide imaging functionality, although for such means the optical axis is not well defined.
  • the advantage of a converging lens is due to its symmetry about the optical axis, whereas the advantage of a diffractive optical element is due to its compactness.
  • the diffractive optical element may be spaced apart, carried by or formed in first light-transmissive substrate 24.
  • collimator 34 is a diffractive optical element
  • it may be positioned either on the entry surface of first light-transmissive substrate 24, as a transmissive diffractive element or on the opposite surface of first light-transmissive substrate 24 as a reflective diffractive element.
  • optical element(s) 42 are positioned so as to reduce an overall size of device 20. Some optical devices function better when light sources are placed within a certain distance therefrom. By including optical element 42, the pathway of the light rays is "folded", hence optical element 42 allows control over the cross-sectional size of device 20. According to a preferred embodiment of the present invention optical element 42 may be as simple as a 45 degrees mirror or any other optical element known in the art for redirecting light.
  • input light source 52 is positioned behind first light-transmissive substrate 24.
  • Input light source 52 may reflect or transmit light, impinging first light-transmissive substrate 24, thereby the light constitutes an image of input light source 52.
  • Input light source 52 may be in any form known in the art, such as but not limited to, a flat panel display e.g., LCD, a virtual image produced by other optical device, a fiber bundle guiding image information or an array of organic/inorganic light emitting diodes.
  • collimator 34 is positioned between input light source 52 and first light-transmissive substrate 24, for collimating the light as described above.
  • first light-transmissive substrate 24 and first optical expander 22 are to expand input light in a first dimension.
  • Figure 5 is a short side schematic illustration of first optical expander 22 carried by first light-transmissive substrate 24.
  • Figure 5 illustrates an optical pathway of two rays, ray 54, shown as a solid line in Figure 5, which is reflected by or transmitted from one end of input light source 52; and ray 56 shown as a dotted line in Figure 5, which is reflected by or transmitted from the center of input light source 52.
  • Ray 54 which enters first light-transmissive substrate 24 through its first s ide, strikes first optical e xpander 22, p ositioned on the second side of first light-transmissive substrate 24. A portion of the light energy carried by ray 54 exits to open air directed into second light-transmissive substrate 28 (not shown in Figure 5). The remnant of ray 54 splits into two rays, each being redirected through an angle, which causes it to experience substantially total internal reflection from the first s ide o f first 1 ight- transmissive s ubstrate 24.
  • each ray strikes first optical expander 22 and partially refracts so that part of the light energy carried by the ray is transmitted through first optical expander 22 and the remnant is redirected, again through an angle which causes it to experience substantially total internal reflection from the first side of first light-transmissive substrate 24.
  • ray 56 splits into three rays, one ray is transmitted outwards and two rays are redirected so as to experience substantially total internal reflection from the first side of first light-transmissive substrate 24, followed by a partial refraction from first optical expander 22.
  • first light-transmissive substrate 24 This process of partial refraction from first optical expander 22 and total reflection from first side of first light-transmissive substrate 24 is repeated for each ofthe two rays initially produced from each parent incoming ray and redirected by first optical expander 22.
  • the number of reflections that each light ray is subjected to is determined by the thickness of first light- transmissive substrate 24, specifically, thinner substrate leads to a larger number o f reflections.
  • the thickness the light-transmissive substrates may vary between about 0.5 mm and about 5 mm. For any thickness within this range, the captured parts of each incoming ray propagate in opposite directions and retain within first light-transmissive substrate 24, until the end of first optical expander 22 is reached.
  • the above process may be achieved by positioning first optical expander 22 on the first side of first light-transmissive substrate 24.
  • first optical expander 22 the energy carried by the light rays is completely redirected from first optical expander 22 and partially reflected upon striking the second side of first light-transmissive substrate 24.
  • each incoming ray is multiplied into a plurality of parallel outgoing rays emerging the second side of first light-transmissive substrate 24.
  • a beam of light passing through first light-transmissive substrate 24 and first optical expander 22 is expanded in a manner that one lateral dimension ofthe outgoing beam is a magnification ofthe corresponding lateral dimension of the incoming beam.
  • the image constituted by the beam is therefore "stretched" or expanded in one dimension.
  • the physical shape and design of the device favor propagation of the light from input light source 52 through first light- transmissive substrate 24 only in one direction, as opposed to the two opposite directions propagation described above.
  • the propagation direction can be controlled by positioning collimator 34 near one end of first light-transmissive substrate 24, so that incoming light is, forced to propagate towards the other end. Once light from input light source 52 refracts out of first light- transmissive substrate 24 it enters second light-transmissive substrate 28.
  • optical trapping element 30 The expanded light entering the entry side of second light-transmissive substrate 28 through optical trapping element 30 is re-directed by trapping element 30 to strike the second side of second light-transmissive substrate 28 through an angle which causes it to experience substantially total internal reflection. Unlike first optical expander 22, the light ray redirected by optical trapping element 30 is not diffracted out, but rather captured and retained within second light- transmissive substrate 28.
  • the light propagates within second light-transmissive substrate 28, as described above, until it reaches second optical expander 26. Otherwise, the light emerges from first light-transmissive substrate 24 and impinges directly on second optical expander 26. In any case, once the light impinges on second optical expander 26 it experiences a series of partial diffractions and total reflections so that the constituent image is "stretched" in a second dimension, in a manner similar to the process of stretching in a first dimension described hereinabove.
  • the diameter of the beam emerging from second light- transmissive substrate 28, is expanded in two dimension: the diameter is expanded in a first dimension within first light-transmissive substrate 24 and in a second dimension within second light-transmissive substrate 28.
  • first optical expander 22 and second optical expander 26 may be manufactured as a linear diffraction grating. Such optical elements are known to allow both redirection and transmission of light striking the grating. The angle of redirection is determined by an appropriate choice of the period of the diffraction grating often called "the grating function".
  • first optical expander 22 and second optical expander 26 may be manufactured as a variable light transmissive surface onto which a stack of linearly stretched mini-prisms is located.
  • optical trapping element 30 may be in any form known in the art for trapping light within a light-transmissive substrate.
  • optical trapping element 30 may be manufactured as a linear diffraction grating.
  • the grating function may be any grating function known in the art suitable for propagation by total internal r eflection, a nd i s d escribed, e .g., i n I ntemational P atent Application No. WO 95/11473.
  • optical trapping element 30 may be manufactured as a stack of linearly stretched mini-prisms.
  • the gratings are substantially orthogonal.
  • the diffraction grating of each of the optical expanders can be embodied within the light-transmissive substrates by recording the interference pattern of two mutually coherent optical waves.
  • the grating can be recorded by means of computer-generated masks and lithographic techniques, by direct writing techniques, by embossing or etching or by any other procedure known in the art.
  • the diffraction gratings of first, second and third diffractive optical elements which may be used in any of the preferred embodiments of the invention described herein, may include any combination of reflection linear diffraction gratings and transmission linear diffraction gratings.
  • the present invention also addresses the problem of enlarging an eye- box of miniature color images. It is a well-known physical phenomenon that lights of different wavelengths (i.e., different colors) diffract on equal diffractive elements through different angles.
  • the linear gratings of second optical expander 26 and optical trapping element 30 are oriented substantially parallel to each other. Further in accordance with a preferred embodiment ofthe present invention, the gratings of second optical expander 26 and optical trapping element 30 are with equal periodicity. With this optical expanders configuration any achromatic diffraction occurred at optical trapping element 30, is compensated at second optical expander 26, and color information may be transmitted without distortion. Similarly, color information is transmitted through first light-transmissive substrate 24 by maintaining grating linearity and periodicity throughout first optical expander 22.
  • first light-transmissive substrate 24 and second light-transmissive substrate 28 may each independently be manufactured from any material which enables transmission of visible light therethrough, such as, but not limited to, glass or transparent plastic.
  • the index of refraction of the light-transmissive substrates materials should be larger than the index of refraction of air, or any other material engaging the inter- substrate spacing.
  • a typical width of both light-transmissive substrates ranges between from about 20 mm to about 60 mm.
  • a typical length of both first optical expander and optical happing element 30 ranges from about 5 mm to about 10 mm.
  • a typical length of second optical expander 26 ranges from about 40 mm to about 100 mm.
  • FIG. 6 An isometric view of device 20 is shown in Figure 6, which illustrates the volume engaged by device 20.
  • the preferred position of input light source 52 depends on whether or not optical element 42 is included in device 20. In the embodiments of the present invention in which optical element 42 is included, the preferred position in front of optical element 42, otherwise the preferred position is behind collimator 34. Both positions are illustrated in Figure 6 as a dotted line (with optical element 42) and a solid line (without optical element 42).
  • a typical volume engaged by both light-transmissive substrates i s about 1 0 cubic cm.
  • collimator 34, optical element 42 and input light source 52 which is taken to have a typical thickness of a liquid crystal display, the total estimated volume of device 20 is about 13 cubic cm.

Abstract

L'invention concerne un dispositif optique pour agrandir un boîtier oculaire, ledit dispositif optique comprenant : (a) un premier extenseur optique porté par ou formé dans un premier substrat transmetteur de lumière qui implique un premier plan ; et (b) un second extenseur optique porté ou formé dans un second substrat transmetteur de lumière qui implique un second plan, ce dernier étant espacé du premier plan. Le premier et le second extenseur optique sont conçus et configurés afin que la lumière traversant le premier extenseur optique soit agrandie dans une première dimension, pénètre dans le second substrat transmetteur de lumière à travers le second extenseur optique, et sorte agrandie dans une seconde dimension dudit second substrat transmetteur de lumière, le boîtier oculaire du dispositif optique étant agrandi à la fois dans la première et la seconde dimension.
EP02777754A 2001-10-09 2002-10-09 Dispositif optique Withdrawn EP1461655A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/971,906 US6833955B2 (en) 2001-10-09 2001-10-09 Compact two-plane optical device
PCT/IL2002/000817 WO2003032017A2 (fr) 2001-10-09 2002-10-09 Dispositif optique
US971906 2004-10-25

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EP1461655A2 true EP1461655A2 (fr) 2004-09-29
EP1461655A4 EP1461655A4 (fr) 2010-11-10

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US (1) US6833955B2 (fr)
EP (1) EP1461655A4 (fr)
AU (1) AU2002339705A1 (fr)
WO (1) WO2003032017A2 (fr)

Families Citing this family (146)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003222427B8 (en) * 2000-11-17 2010-04-29 Vascular Biogenics Ltd. Promoters exhibiting endothelial cell specificity and methods of using same
US8071740B2 (en) 2000-11-17 2011-12-06 Vascular Biogenics Ltd. Promoters exhibiting endothelial cell specificity and methods of using same for regulation of angiogenesis
US6838452B2 (en) * 2000-11-24 2005-01-04 Vascular Biogenics Ltd. Methods employing and compositions containing defined oxidized phospholipids for prevention and treatment of atherosclerosis
EP2277887A3 (fr) 2001-10-19 2011-02-16 Vascular Biogenics Ltd. Constructions de polynucléotides, compositions pharmaceutiques et procédés pour la régulation négative ciblée de l'angiogenèse et du traitement contre le cancer.
US7205960B2 (en) * 2003-02-19 2007-04-17 Mirage Innovations Ltd. Chromatic planar optic display system
CN100410727C (zh) 2004-03-29 2008-08-13 索尼株式会社 光学装置以及虚像显示装置
US7492512B2 (en) 2004-07-23 2009-02-17 Mirage International Ltd. Wide field-of-view binocular device, system and kit
US7499216B2 (en) * 2004-07-23 2009-03-03 Mirage Innovations Ltd. Wide field-of-view binocular device
US7206107B2 (en) * 2004-12-13 2007-04-17 Nokia Corporation Method and system for beam expansion in a display device
US20060126181A1 (en) * 2004-12-13 2006-06-15 Nokia Corporation Method and system for beam expansion in a display device
US20060232578A1 (en) * 2004-12-21 2006-10-19 Silviu Reinhorn Collapsible portable display
US20060234784A1 (en) * 2004-12-21 2006-10-19 Silviu Reinhorn Collapsible portable display
FI20045513A (fi) * 2004-12-31 2006-07-01 Nokia Corp Kynätyyppinen virtuaalinäyttö
US7573640B2 (en) * 2005-04-04 2009-08-11 Mirage Innovations Ltd. Multi-plane optical apparatus
EP1932051A1 (fr) * 2005-09-14 2008-06-18 Mirage Innovations Ltd. Réseau de diffraction avec un facteur d'utilisation variant dans l'espace
US20080043334A1 (en) * 2006-08-18 2008-02-21 Mirage Innovations Ltd. Diffractive optical relay and method for manufacturing the same
EP1942364A1 (fr) 2005-09-14 2008-07-09 Mirage Innovations Ltd. Relais optique à diffraction et son procédé de fabrication
EP1943556B1 (fr) * 2005-11-03 2009-02-11 Mirage Innovations Ltd. Dispositif de relais optique binoculaire
GB0522968D0 (en) 2005-11-11 2005-12-21 Popovich Milan M Holographic illumination device
EP1952189B1 (fr) * 2005-11-21 2016-06-01 Microvision, Inc. Ecran d'affichage avec substrat a guidage d'image
GB0718706D0 (en) 2007-09-25 2007-11-07 Creative Physics Ltd Method and apparatus for reducing laser speckle
CN101460882B (zh) 2006-06-02 2010-10-27 诺基亚公司 用于在出瞳扩大器中提供分色的装置和方法以及电子设备
WO2007141588A1 (fr) 2006-06-02 2007-12-13 Nokia Corporation Expanseur de pupille de sortie à substrat séparé
EP2033040B1 (fr) 2006-06-02 2020-04-29 Magic Leap, Inc. Dispositif d'affichage stéréoscopique d'expanseur de pupille de sortie
WO2008023375A1 (fr) * 2006-08-23 2008-02-28 Mirage Innovations Ltd. Dispositif de relais optique de diffraction ayant une uniformité de couleur améliorée
WO2008148927A1 (fr) * 2007-06-04 2008-12-11 Nokia Corporation Expanseur de faisceau diffractif et afficheur virtuel basé sur un expanseur de faisceau diffractif
US7589901B2 (en) * 2007-07-10 2009-09-15 Microvision, Inc. Substrate-guided relays for use with scanned beam light sources
US20100302644A1 (en) * 2007-09-18 2010-12-02 Mirage Innovations Ltd Slanted optical device
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
US9335604B2 (en) 2013-12-11 2016-05-10 Milan Momcilo Popovich Holographic waveguide display
US8194325B2 (en) 2009-06-30 2012-06-05 Nokia Corporation Optical apparatus and method
JP5545076B2 (ja) 2009-07-22 2014-07-09 ソニー株式会社 画像表示装置及び光学装置
US11320571B2 (en) 2012-11-16 2022-05-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view with uniform light extraction
US10795160B1 (en) 2014-09-25 2020-10-06 Rockwell Collins, Inc. Systems for and methods of using fold gratings for dual axis expansion
US8233204B1 (en) 2009-09-30 2012-07-31 Rockwell Collins, Inc. Optical displays
US11300795B1 (en) 2009-09-30 2022-04-12 Digilens Inc. Systems for and methods of using fold gratings coordinated with output couplers for dual axis expansion
US20200057353A1 (en) 2009-10-09 2020-02-20 Digilens Inc. Compact Edge Illuminated Diffractive Display
US11204540B2 (en) 2009-10-09 2021-12-21 Digilens Inc. Diffractive waveguide providing a retinal image
US8659826B1 (en) 2010-02-04 2014-02-25 Rockwell Collins, Inc. Worn display system and method without requiring real time tracking for boresight precision
US8531773B2 (en) 2011-01-10 2013-09-10 Microvision, Inc. Substrate guided relay having a homogenizing layer
US8391668B2 (en) 2011-01-13 2013-03-05 Microvision, Inc. Substrate guided relay having an absorbing edge to reduce alignment constraints
US9274349B2 (en) 2011-04-07 2016-03-01 Digilens Inc. Laser despeckler based on angular diversity
US10670876B2 (en) 2011-08-24 2020-06-02 Digilens Inc. Waveguide laser illuminator incorporating a despeckler
EP2748670B1 (fr) 2011-08-24 2015-11-18 Rockwell Collins, Inc. Affichage de données portable
WO2016020630A2 (fr) 2014-08-08 2016-02-11 Milan Momcilo Popovich Illuminateur laser en guide d'ondes comprenant un dispositif de déchatoiement
US9507150B1 (en) 2011-09-30 2016-11-29 Rockwell Collins, Inc. Head up display (HUD) using a bent waveguide assembly
US8634139B1 (en) 2011-09-30 2014-01-21 Rockwell Collins, Inc. System for and method of catadioptric collimation in a compact head up display (HUD)
US9715067B1 (en) 2011-09-30 2017-07-25 Rockwell Collins, Inc. Ultra-compact HUD utilizing waveguide pupil expander with surface relief gratings in high refractive index materials
US9366864B1 (en) 2011-09-30 2016-06-14 Rockwell Collins, Inc. System for and method of displaying information without need for a combiner alignment detector
US20150010265A1 (en) 2012-01-06 2015-01-08 Milan, Momcilo POPOVICH Contact image sensor using switchable bragg gratings
US9052414B2 (en) * 2012-02-07 2015-06-09 Microsoft Technology Licensing, Llc Virtual image device
US9075566B2 (en) 2012-03-02 2015-07-07 Microsoft Technoogy Licensing, LLC Flexible hinge spine
US9870066B2 (en) 2012-03-02 2018-01-16 Microsoft Technology Licensing, Llc Method of manufacturing an input device
US9460029B2 (en) 2012-03-02 2016-10-04 Microsoft Technology Licensing, Llc Pressure sensitive keys
US9523852B1 (en) 2012-03-28 2016-12-20 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
CN103562802B (zh) * 2012-04-25 2016-08-17 罗克韦尔柯林斯公司 全息广角显示器
WO2013167864A1 (fr) 2012-05-11 2013-11-14 Milan Momcilo Popovich Dispositif de suivi d'un œil
US20130300590A1 (en) 2012-05-14 2013-11-14 Paul Henry Dietz Audio Feedback
US10031556B2 (en) 2012-06-08 2018-07-24 Microsoft Technology Licensing, Llc User experience adaptation
US9019615B2 (en) 2012-06-12 2015-04-28 Microsoft Technology Licensing, Llc Wide field-of-view virtual image projector
US9355345B2 (en) 2012-07-23 2016-05-31 Microsoft Technology Licensing, Llc Transparent tags with encoded data
US9152173B2 (en) 2012-10-09 2015-10-06 Microsoft Technology Licensing, Llc Transparent display device
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
US9513748B2 (en) 2012-12-13 2016-12-06 Microsoft Technology Licensing, Llc Combined display panel circuit
US9638835B2 (en) 2013-03-05 2017-05-02 Microsoft Technology Licensing, Llc Asymmetric aberration correcting lens
US9674413B1 (en) 2013-04-17 2017-06-06 Rockwell Collins, Inc. Vision system and method having improved performance and solar mitigation
WO2014188149A1 (fr) 2013-05-20 2014-11-27 Milan Momcilo Popovich Dispositif holographique de suivi d'un œil à guide d'onde
WO2015015138A1 (fr) 2013-07-31 2015-02-05 Milan Momcilo Popovich Méthode et appareil de détection d'une image par contact
US9244281B1 (en) 2013-09-26 2016-01-26 Rockwell Collins, Inc. Display system and method using a detached combiner
US9874667B2 (en) 2013-12-19 2018-01-23 Bae Systems Plc Waveguides
GB201322489D0 (en) * 2013-12-19 2014-02-05 Bae Systems Plc Improvement in and relating to waveguides
GB201322490D0 (en) * 2013-12-19 2014-02-05 Bae Systems Plc Improvements in or relating to waveguides
WO2015091282A1 (fr) 2013-12-19 2015-06-25 Bae Systems Plc Perfectionnements apportés à des guides d'ondes et associés à ceux-ci
US10732407B1 (en) 2014-01-10 2020-08-04 Rockwell Collins, Inc. Near eye head up display system and method with fixed combiner
US9519089B1 (en) 2014-01-30 2016-12-13 Rockwell Collins, Inc. High performance volume phase gratings
JP6296841B2 (ja) * 2014-03-12 2018-03-20 オリンパス株式会社 表示装置
US9244280B1 (en) 2014-03-25 2016-01-26 Rockwell Collins, Inc. Near eye display system and method for display enhancement or redundancy
US9529196B1 (en) 2014-06-05 2016-12-27 Iphysicist Ltd. Image guide optics for near eye displays
WO2016020632A1 (fr) 2014-08-08 2016-02-11 Milan Momcilo Popovich Procédé pour gravure par pressage et réplication holographique
US10241330B2 (en) 2014-09-19 2019-03-26 Digilens, Inc. Method and apparatus for generating input images for holographic waveguide displays
US9715110B1 (en) 2014-09-25 2017-07-25 Rockwell Collins, Inc. Automotive head up display (HUD)
US10088675B1 (en) 2015-05-18 2018-10-02 Rockwell Collins, Inc. Turning light pipe for a pupil expansion system and method
WO2016046514A1 (fr) 2014-09-26 2016-03-31 LOKOVIC, Kimberly, Sun Dispositif de poursuite optique à guide d'ondes holographique
JP2016085430A (ja) * 2014-10-29 2016-05-19 セイコーエプソン株式会社 虚像表示装置
WO2016113533A2 (fr) 2015-01-12 2016-07-21 Milan Momcilo Popovich Afficheurs à champ lumineux et à guide d'ondes holographiques
EP3245444B1 (fr) 2015-01-12 2021-09-08 DigiLens Inc. Affichage à guide d'ondes isolé de l'environnement
WO2016116733A1 (fr) 2015-01-20 2016-07-28 Milan Momcilo Popovich Lidar à guide d'ondes holographique
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
EP3062142B1 (fr) 2015-02-26 2018-10-03 Nokia Technologies OY Appareil pour un dispositif d'affichage proche
US10459145B2 (en) 2015-03-16 2019-10-29 Digilens Inc. Waveguide device incorporating a light pipe
WO2016156776A1 (fr) 2015-03-31 2016-10-06 Milan Momcilo Popovich Procédé et appareil de détection d'une image par contact
US10247943B1 (en) 2015-05-18 2019-04-02 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US11366316B2 (en) 2015-05-18 2022-06-21 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US10126552B2 (en) 2015-05-18 2018-11-13 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
US10108010B2 (en) 2015-06-29 2018-10-23 Rockwell Collins, Inc. System for and method of integrating head up displays and head down displays
CA2996925C (fr) * 2015-09-05 2022-06-28 Leia Inc. Retroeclairage a concentration de lumiere, et systeme d'affichage proche de l'oeil utilisant ce retroeclairage
EP3359999A1 (fr) 2015-10-05 2018-08-15 Popovich, Milan Momcilo Afficheur à guide d'ondes
KR102348588B1 (ko) 2015-10-16 2022-01-07 레이아 인코포레이티드 멀티빔 회절 격자-기반 니어-아이 디스플레이
JP6597197B2 (ja) * 2015-11-05 2019-10-30 セイコーエプソン株式会社 光束径拡大素子および表示装置
US10598932B1 (en) 2016-01-06 2020-03-24 Rockwell Collins, Inc. Head up display for integrating views of conformally mapped symbols and a fixed image source
CA3007627C (fr) 2016-01-30 2021-05-25 Leia Inc. Affichage de confidentialite et systeme d'affichage de confidentialite a mode double
WO2017134412A1 (fr) 2016-02-04 2017-08-10 Milan Momcilo Popovich Dispositif de poursuite optique de guide d'onde holographique
EP3433659A1 (fr) 2016-03-24 2019-01-30 DigiLens, Inc. Procédé et appareil pour fournir un dispositif guide d'ondes holographique sélectif en polarisation
EP3433658B1 (fr) 2016-04-11 2023-08-09 DigiLens, Inc. Dispositif guide d'onde pour la projection de lumiere structuree
EP3548939A4 (fr) 2016-12-02 2020-11-25 DigiLens Inc. Dispositif de guide d'ondes à éclairage de sortie uniforme
US10650552B2 (en) 2016-12-29 2020-05-12 Magic Leap, Inc. Systems and methods for augmented reality
EP3343267B1 (fr) 2016-12-30 2024-01-24 Magic Leap, Inc. Appareil de découplage de lumière polychromatique, affichages proches de l' il le comprenant et procédé de découplage de lumière polychromatique
US10545346B2 (en) 2017-01-05 2020-01-28 Digilens Inc. Wearable heads up displays
US10295824B2 (en) 2017-01-26 2019-05-21 Rockwell Collins, Inc. Head up display with an angled light pipe
US10930710B2 (en) * 2017-05-04 2021-02-23 Apple Inc. Display with nanostructure angle-of-view adjustment structures
US10578870B2 (en) 2017-07-26 2020-03-03 Magic Leap, Inc. Exit pupil expander
US10942430B2 (en) 2017-10-16 2021-03-09 Digilens Inc. Systems and methods for multiplying the image resolution of a pixelated display
WO2019113570A1 (fr) 2017-12-10 2019-06-13 Magic Leap, Inc. Revêtements antireflet sur guides d'ondes optiques
EP3729172A4 (fr) 2017-12-20 2021-02-24 Magic Leap, Inc. Insert pour dispositif de visualisation à réalité augmentée
CN115356905A (zh) 2018-01-08 2022-11-18 迪吉伦斯公司 波导单元格中全息光栅高吞吐量记录的系统和方法
WO2019136476A1 (fr) 2018-01-08 2019-07-11 Digilens, Inc. Architectures de guides d'ondes et procédés de fabrication associés
US11852843B1 (en) 2018-01-10 2023-12-26 Meta Platforms Technologies, Llc Diffractive optical elements (DOEs) for high tolerance of structured light
US10895752B1 (en) * 2018-01-10 2021-01-19 Facebook Technologies, Llc Diffractive optical elements (DOEs) for high tolerance of structured light
WO2019178567A1 (fr) 2018-03-15 2019-09-19 Magic Leap, Inc. Correction d'image due à la déformation de composants d'un dispositif de visualisation
EP3765897B1 (fr) 2018-03-16 2024-01-17 Digilens Inc. Guides d'ondes holographiques incorporant une commande de biréfringence et procédés pour leur réalisation
US11204491B2 (en) 2018-05-30 2021-12-21 Magic Leap, Inc. Compact variable focus configurations
EP3803450A4 (fr) 2018-05-31 2021-08-18 Magic Leap, Inc. Localisation de posture de tête par radar
CN112400157A (zh) 2018-06-05 2021-02-23 奇跃公司 观看系统的基于单应性变换矩阵的温度校准
US11092812B2 (en) 2018-06-08 2021-08-17 Magic Leap, Inc. Augmented reality viewer with automated surface selection placement and content orientation placement
US11579441B2 (en) 2018-07-02 2023-02-14 Magic Leap, Inc. Pixel intensity modulation using modifying gain values
WO2020010226A1 (fr) 2018-07-03 2020-01-09 Magic Leap, Inc. Systèmes et procédés pour des applications de réalité virtuelle et de réalité augmentée
US11856479B2 (en) 2018-07-03 2023-12-26 Magic Leap, Inc. Systems and methods for virtual and augmented reality along a route with markers
EP4270016A3 (fr) 2018-07-24 2024-02-07 Magic Leap, Inc. Étalonnage dépendant de la température de dispositifs de détection de mouvement
WO2020023543A1 (fr) 2018-07-24 2020-01-30 Magic Leap, Inc. Dispositif de visualisation à intégrant un joint anti-poussière
US11402801B2 (en) 2018-07-25 2022-08-02 Digilens Inc. Systems and methods for fabricating a multilayer optical structure
WO2020028834A1 (fr) 2018-08-02 2020-02-06 Magic Leap, Inc. Système de visualisation avec compensation de distance interpupillaire basée sur le mouvement de la tête
EP3830631A4 (fr) 2018-08-03 2021-10-27 Magic Leap, Inc. Correction de dérive basée sur une pose non fusionnée d'une pose fusionnée d'un totem dans un système d'interaction d'utilisateur
CN117111304A (zh) 2018-11-16 2023-11-24 奇跃公司 用于保持图像清晰度的图像尺寸触发的澄清
JP2022519292A (ja) 2019-02-06 2022-03-22 マジック リープ， インコーポレイテッド 複数のプロセッサによって発生される総熱を限定するための標的意図ベースのクロック速度の決定および調節
KR20210138609A (ko) 2019-02-15 2021-11-19 디지렌즈 인코포레이티드. 일체형 격자를 이용하여 홀로그래픽 도파관 디스플레이를 제공하기 위한 방법 및 장치
KR20210134763A (ko) 2019-03-12 2021-11-10 디지렌즈 인코포레이티드. 홀로그래픽 도파관 백라이트 및 관련된 제조 방법
EP3939030A4 (fr) 2019-03-12 2022-11-30 Magic Leap, Inc. Enregistrement d'un contenu local entre des premier et second visualiseurs de réalité augmentée
US11445232B2 (en) 2019-05-01 2022-09-13 Magic Leap, Inc. Content provisioning system and method
CN114207492A (zh) 2019-06-07 2022-03-18 迪吉伦斯公司 带透射光栅和反射光栅的波导及其生产方法
CN114174895A (zh) 2019-07-26 2022-03-11 奇跃公司 用于增强现实的系统和方法
KR20220038452A (ko) 2019-07-29 2022-03-28 디지렌즈 인코포레이티드. 픽셀화된 디스플레이의 이미지 해상도와 시야를 증배하는 방법 및 장치
KR20220054386A (ko) 2019-08-29 2022-05-02 디지렌즈 인코포레이티드. 진공 브래그 격자 및 이의 제조 방법
JP2023502927A (ja) 2019-11-15 2023-01-26 マジック リープ， インコーポレイテッド 外科手術環境において使用するための視認システム
US10962787B1 (en) * 2019-11-25 2021-03-30 Shanghai North Ocean Photonics Co., Ltd. Waveguide display device
US10935730B1 (en) * 2019-11-25 2021-03-02 Shanghai North Ocean Photonics Co., Ltd. Waveguide display device
CN113219671A (zh) * 2021-05-25 2021-08-06 深圳市光舟半导体技术有限公司 光学装置和显示设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06230225A (ja) * 1993-02-03 1994-08-19 Nissan Motor Co Ltd 表示装置
US5682255A (en) * 1993-02-26 1997-10-28 Yeda Research & Development Co. Ltd. Holographic optical devices for the transmission of optical signals of a plurality of channels
US5742262A (en) * 1993-06-23 1998-04-21 Olympus Optical Co., Ltd. Image display apparatus
US5835661A (en) * 1994-10-19 1998-11-10 Tai; Ping-Kaung Light expanding system for producing a linear or planar light beam from a point-like light source
WO1999052002A1 (fr) * 1998-04-02 1999-10-14 Elop Electro-Optics Industries Ltd. Dispositifs optiques holographiques

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410237A (en) * 1980-09-26 1983-10-18 Massachusetts Institute Of Technology Method and apparatus for shaping electromagnetic beams
US4711512A (en) 1985-07-12 1987-12-08 Environmental Research Institute Of Michigan Compact head-up display
US5237451A (en) * 1989-11-17 1993-08-17 Minnesota Mining And Manufacturing Company Beam shaping system using diffraction
JPH0497201A (ja) * 1990-08-10 1992-03-30 Matsushita Electric Ind Co Ltd ビームエキスパンド装置および回折格子の製造方法
US5224198A (en) 1991-09-30 1993-06-29 Motorola, Inc. Waveguide virtual image display
JPH08507879A (ja) 1993-02-26 1996-08-20 イエダ リサーチ アンド デベロツプメント カンパニー リミテツド ホログラフィー光学装置
EP0724743A1 (fr) 1993-10-22 1996-08-07 Kopin Corporation Systeme de visualisation monte au niveau de la tete
JPH07326065A (ja) * 1994-05-27 1995-12-12 Hitachi Ltd 光情報処理装置
US6825980B2 (en) * 1995-12-18 2004-11-30 Metrologic Instruments, Inc. DOE-based systems and devices for producing laser beams having modified beam characteristics

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06230225A (ja) * 1993-02-03 1994-08-19 Nissan Motor Co Ltd 表示装置
US5682255A (en) * 1993-02-26 1997-10-28 Yeda Research & Development Co. Ltd. Holographic optical devices for the transmission of optical signals of a plurality of channels
US5742262A (en) * 1993-06-23 1998-04-21 Olympus Optical Co., Ltd. Image display apparatus
US5835661A (en) * 1994-10-19 1998-11-10 Tai; Ping-Kaung Light expanding system for producing a linear or planar light beam from a point-like light source
WO1999052002A1 (fr) * 1998-04-02 1999-10-14 Elop Electro-Optics Industries Ltd. Dispositifs optiques holographiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03032017A2 *

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WO2003032017A3 (fr) 2004-03-11
WO2003032017A2 (fr) 2003-04-17
US6833955B2 (en) 2004-12-21
EP1461655A4 (fr) 2010-11-10
US20030067685A1 (en) 2003-04-10

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